Smoke-consuming attachment for blast-furnaces



(No Model.)

B. WARNER. SMOKBGONSUMING ATTACHMENT FOR BLAST FURNACES.

No. 539,458. Patented May 21, 1895.

NITED STATES PATENT GFFICE.

EMELL WARNER, OF ST. LOUIS, MISSOURI.

SMOKE -CONSUMING ATTACHMENT FOR BLAST-FURNACES.

SPECIFICATION forming part of Letters Patent No. 539,458, dated May 21,1895.

Application filed February 3, 1895. Serial No. 537,709- (No model.)

To all whom it may concern.-

Be it known that I, EMELL WARNER, a citizen of the United States,residing at St. Louis, in the State of Missouri,have invented certainnew and useful Improvements in Smoke-ConsumingAttachments forBlast-Furnaces; and I do declare the following to be a full, clear, andexact description of the invention,such as will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the figures of reference markedthereon,which form part a of this specification.

The object of my invention is to' provide means for consuming the smokeand gasesin a furnace employed for welding or forging metal. 7

My invention consists in the construction, arrangement and combinationof parts, hereinafter set forth, pointed out in my claims, andillustrated by the accompanying drawings, in which- Figure 1 is atransverse sectional elevation on the line 1 1 of Fig. 2, showing mydevice attached to a furnace. Fig. 2 is a side elevation, partly insection, of a furnace embodying my invention.

In the construction shown the numeral 10 designates a fire box and 11 aheating furnace, separated by a bridge wall '12. Mounted in the bridgewall 12 and extending trans,- versely of the furnace is an air box 13,and an air pipe 14 communicates with oneend of said box 13 outside thefurnace, through which pipe 14 air is forced under blast into andthrough said box. The air box 13 is extended outside the furnace and twopipes 15, 16, lead in opposite directions from the projecting endthereof opposite the pipe. let. The pipe 15 leads to the ash pit 17beneath the grate 18, and the pipe 16 leads to one end of an air box 19located in the roof of the fire box 10 and transversely of the furnace.

The air box 19 is located in advance of the bridge wall 12 and has aslot20 in the bottom thereof, which slot affords communication between saidair box 19 and the firebox, adjacent to the passage 21 above said bridgewall.

In the operation of this device the draft is forced by the blast throughthe pipe 15, and

the smoke and gases rise for passage through and above the bridge wall12and are met by the blast of air from the slot 20, air box 19, and pipe16, and commingling with said blast of air from an inflammable gas whichis con sumed and destroyed in the fire box, thus saving fuel anddestroying the major portion of the offensive smoke and gas.

By locating the air passages in metallic pipes and leading the sameoutside the furnace,I am enabled to minimize the cost of construction,and retain the temperature of the outer'surface of the pipes at amuchlower degree, thus avoiding the ordinary difficulties engenderedby theburning out of the pipes, and at the same time providing for repairs anddisplacement, when necessary, with much greater convenience.

What I claim is- 1. An attachment for blast furnaces, comprising an airbox so shaped as to be located in a bridge wall and project outside thefurnace at both ends, connection between one end of said air box andblast mechanism, pipes-15, 16 connected to the opposite end of said airbox and extending in divergent planes therefrom, the pipe 15 leading tothe ash .pit of the furnace, an air box 19 located in the roof of thefurnace and communicating there with the full width of the fire box in avertical plane adjacent to the bridge wall, and connection between theupper end of the pipe 16 and one end of said air box 19, as set forth.

2. In a furnace a bridge wall, an air box 13 mounted in said bridge walland extending outside the furnace at both ends, a blast pipe connectedto one end of said air box, and divergent pipes 15, 16, connected to theother end of said air box 13, the pipe 15 leading to the ash pit 17,'anair box 19 located in the roof of the fire box, and extending outsidethe furnace at one end and connected to the in presence of twowitnesses.

EMELL WARNER. Witnesses:

S. 0. SWEET, IDA O. ENGELHARD.

